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FR21 patents

Top patents by PatentIndex Score

US5120431AJun 9, 1992

Pneumatic centrifugal separator

FCB48 citations92
US6318559B2Nov 20, 2001

Air classifier with rotor comprising two independently controllable parallel flow paths

FCB19 citations88
US5205494AApr 27, 1993

Grinding process and mill for carrying out this process

FCB30 citations87
US5137629AAug 11, 1992

Magnetic separator operating in a wet environment

FCB25 citations87
US5195548AMar 23, 1993

Washing device

FCB21 citations80
US5133807AJul 28, 1992

Process and installation for the continuous production of sugar crystals

FCB20 citations75
US6138933AOct 31, 2000

Crushers with ring-shaped track and roller

FCB9 citations71
US6273269B1Aug 14, 2001

Air classifier with centrifugal action pneumatic separator having centrifugal action

FCB6 citations69
US6179233B1Jan 30, 2001

Wet crushing process and crusher for implementing such process

FCB12 citations69
US5575428ANov 19, 1996

Cone vibrating mill and process for adjusting the operation of such a mill

FCB18 citations69
US5199552AApr 6, 1993

Endless belt conveyor

FCB13 citations68
US6042032AMar 28, 2000

Method and apparatus for simultaneously and continuously producing a plurality of size fractions of a mineral material

FCB10 citations66
US5223040AJun 29, 1993

Batch process and apparatus for crystallizing syrup

FCB14 citations66
US6227470B1May 8, 2001

Ring-roller crusher

FCB2 citations60
US6193177B1Feb 27, 2001

Device form moving forward the substance in a knife hog

FCB3 citations60
US5615775AApr 1, 1997

High-intensity magnetic separator

FCB17 citations60
US6325313B1Dec 4, 2001

Device for feeding a material treating plant and vibratory mill equipped with same

FCB3 citations59
US5558279ASep 24, 1996

Process and plant for grinding spent potlinings and similar materials

FCB7 citations58
US5238400AAug 24, 1993

Apparatus for distributing pneumatically conveyed solid pulverulent material

FCB2 citations51
US6481651B1Nov 19, 2002

Method and plant for disintegrating crude material in lumps into a granular material according to particle size distribution

FCB2 citations50
US5217368AJun 8, 1993

Process and apparatus for the thermal treatment of minerals in powdery form

FCB2 citations44